Process automation is the primary reason this tool is so powerful, without requiring a time consuming investment in scripting for one-off tasks. The remote management feature is quite handy, but not unique until combined with the automation. The Reach Server component is now both the RMM gateway and an important logging and reporting tool - what was good in previous versions is now indispensable. The complete suite covers the majority of desktop management duties, and the more you put into learning the automation processes, the more you get out of it. The price is right, too!
For any automation task that affects more than a few dozen endpoints, the workstations running Goverlan had best be fairly beefy - depending on the task, a few hundred endpoints can bring a quad core machine to 99% utilization. Know that going in, and it's not a big deal. Change control is either too hard for us to figure out or non-existent, we rely on external documentation. This is a problem because with great power comes great responsibility! I would hope to see the logging and auditing extended via the Reach server in the future.
Demo, trial, watch the webcasts. For what it does it's straightforward, but complex tasks require forethought. Don't do a 30 minute skim and think you've come close to understanding what you can accomplish. If you've done a fair amount of scripting, that will help you appreciate what they're doing under the GUI.
Mass deployment of software, mass configuration updates - did you want SMB1 disabled RIGHT NOW after that security scare? Don't want to wait for GPO's to get updated? NO PROBLEM.